Machine for drying jewelry, &amp;c.



F. P. BOLAND. MACHINE POB. DRYING JEWELRY, &0. APPLICATION FILED 113.25, 1910. y 96 9,453.

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FRANCIS P. BGLAND, F PROVIDENCE, RHODE ISLANI).-

Specification of Letters atent.

Patented Sept. 6, i910.

Application filed April 25, 1910. Serial No. 557,326.

`application for Letters Patent relates to improvementsl in continuous hot-blastidrying-machines ot' the class more particularly y adapted for drying articles ot jewelry, etc.,

" ot its operation:

and it consists in the novel construction and a rrangement of parts, all as more fully hereinat'ter set Yforth and claimed.

The object ot the invention is to produce a sel tcontuined drying-machine of the character referred to` iu which the several operative partsl or elements thereof are disposed so as to be readily and convenientlyY accessible. while at the saine time being more cornpact and po t: sing greater etliciency than machines of this` general type heretofore deviscd.

ln the iaccompanving` sheet ot drawings. Figure l represents a central longitudinal sectional view of my improved hot -blastllying-machine. Sonie ot' the parts being in elevation. the section being' taken substantially on line m fr of Fig. 2; and Fig. 2 is a correspoinling end view, in partial section, the latter being taken on line .2 Q ot' Fig. l.

The following is a more detailed description ot' thel machine, including the manner in the drawing designates my iinproved hot-blast drying-machine complete. lt is provided with a suitably shaped hol low casing or body part a, having' an apertured vertical partition 722 disposed therein and forming` a wall of the enlarged main or air-receiving chamber o. The casing is ex tended attlic left, as drawn, to provide the open chamber or recess c, in which latter a suitable, power-driven rotary blower C is mounted. The top end of chamber b is open and adapted to receive and support the removably fitted pan or work-holding receptacle B` having comparatively deep walls and apertorated or screen-like bottom b1, as represented in Fig. l. The relatively cold or exhaust air is sucked or drawn into the blower troni theichamber Z), via the enlarged, continuously open central aperture c2 formed in partition b2, and is discharged under pressure trom the blower vthrough the latters outlet-nozzle r (Fig.

directly into Va heating chamber (l disposed th'ereabove. The lower portion of this chamber may be formed in an extension ot' the body a, its upper or complementary portion being in open communication with the interior of a hood .71.1, registering With the .said extension. lf desired, the hood member may be detachably secured to the adjacent part ot' the body f1. A suitably devised steam-heating coil, as D, is mounted in said chamber fui indicating the intake end and w the discharge or return end of the coil. The coil is adapted to receive steam troni any suitable or convenienty source of supply, the radiant heat being utilized to increase the.ten'iperat-ure of the air discharged from the blower during its (the airs) passage through the `chamber.

A swinging pipe or goose-neck connection r2 extends upwardly trom and is in continuous communication .withthe opening i" 'formed in the upper end of the hood, and terminates in an outlet-nozzle r3, adapted to discharge the heated air downward intothc said receptacle B.

'lily improved hot-blast ilryingr-machine is further provided with means, adapted to be actuated by the blower, for rotating a holder or wire basket, constructed to temporarily contain articles ot liewelry while they are being sul'iliected tothe. hot air blast discharged from the nozzle. r. The blowershatt @extends into the relatively cool air chamber and is revolubly mounted in a standard or bracket mi, having a foot m1 secured to the base of the casing. The member m. is also provided with upper and lower al-ining' bearings in? mit, having an endwise movable, rcvoluble vertical shaft L mounted there-in, its upper end extending through the said screen base b1, and is surniounted by a wire basket or analogous container 14) having` perforated walls and being detachably secured to the shaft. A friction wheel f is fixed to the inner end of the blowershaft c, the same being adaptedl to rotate shaft 7L through the medium of a companion wheel f1, fixed to .the last-named shaft. The lower end of shaft, lr normally rests nponra treadle-lever Z, fulcrmned at The outer portion of the lever extends through a slotted opening a2 formed in the casings wall. The latter may be provided with a recess or pocket al, into which the free end of the lever extends. i

Now, assuming the blower to be running, the manner of operation is as follows: The work or articles of jewelry are first placedy in the holder or basket E; the heated air discharged from nozzle r3, as well as outer air, passes downward through the basket and partition b1 into the relatively cool airchamber b and is then drawn or sucked through opening c2 direct into the blower. rhe action of the blower forces said cool air through its discharge-nozzle 11. into the chamber CZ, where it (the air) is heated', while at the same time any vapor or moisture present is evaporated from it. The thus heated air passes freely through the opening r1 at the top of the chamber into the bent tube r2 and is discharged from the outlet-nozzle r3, thus completing the air circulation. In case it is deemed desirable to revolve the container E While its contents are being sub jected to the heated airblast, the attendant simply presses the lever Z downward (see arrow direction), thereby moving shaft h upward until its disk f1 is rictionally engaged by the continuously revoluble smaller diivingivlieel or disk f, thus actuating the container and causing it to rotate at a correspondingly reduced speed. Upon removing pressure from the lever Z, the shaft 71 etc., drop to the normal stationary position.

lVhile the construction herein described and illustrated is the preferred one, it is obvious that various changes in the form, proportions, size and minor details of the machine may be made therein without departing from the spirit of or eliminating any of the 'advantages of the invention.

I claim as my invention:

1 A drying-machine ot' the general character described, the -same including inv its construction the combination of a hollow body.1neniber or casino provided with a work container or hol er and a' chamber therebelow in open communication with it, an air-heating compartment located' contig# nous to but separated from 'said chamber,- means for heating the air in said compart-Y ment, means interposed between the 'conn partment and said. ch v"aber for drawing' o r sucking air from the latter and forcing 1t into the heating compartment, and means for conducting heated air from the klatter and discharging into the said container.

2. ln a dryingfmachine of the character described, the combination o1 a main casing or body provided at the top with a container or work holder, a spent-air chamber located below and communicating with the container, an air-heating compartment adheated air into the container, a recess formed in one side et the casing, its walls or partitions separating it from the spent-air and heating chambers, and a power blower located in'said recess and being in communication with both the said chambers.

3. in a dryinganachine of the character described, a hollow body member having an air-receiving chamber, and a, power-blower communicating with said chamber, in combination with means for conductino air under pressure from the blower and discharging1 itrinto said chamber, a revolubly mounted work-holding element or container located with respect to the discharge end of said air-condncting means and air-chamber, and mechanism actuated by the blower for rotating the said work-holding element.

4. ln a dryingmachine of the character described, a hollow body member having an air-receiving chamber, an air-heating chamber, nand a power-blower communicating with said chambers, in combination with a revolubly mounted receptacle adapted for holding the work or articles to be treated or dried, mechanism actuated by the blower for rotating the work-holder, manually actuated means for controlling the movements of the holder, and a pipe for conducting air from said heatingchaniber and discharging it into the. work-holder and air-receiving chamber.

ln testimony whereof if have aiiixed my signature in presence of two witnesses.

Giro. H.. ltniinvefroiv, @Anvil El. Bnown.

said chamber arranged to discharge 

